Problems by khatribiru

Coin Toss
Sanvi is playing with a coin in which number 1 is written on the top side and number 0 is written at...
Moderate 74/91/168
Concatenation of Perfect Squares
You are given a positive integer number. You have to determine whether this number can be represente...
DFS Moderate 83/112/294
Cycles in a Maze
Jahid's elder brother Jadu makes fun of Jahid by calling him dumb. So to make Jadu realize about his...
Fancy Phone Numbers
A phone number is fancy if any one of the following conditions is satisfied: At least 4 consecutiv...
Game on Mars
In the year 2020, Alice and Bob will land on Mars just to play a game that will be broadcasted live ...
Game Moderate 20/23/90
Knight and Bishop
We all know about the chess game. Chess game is played on 8x8 board. Now, Alice and Bob come to play...
Montu Mia and the Pillar of Nurjahan
As you might know Mr Montu Mia is very passionate about any challenges he faces. One day he went to ...
Mount Everest
Mount Everest is known as Sagarmatha in Nepali. The height of Mt Everest is 8,848 meters. Many local...
Perfect Date
What is your idea about the perfect date? Umm... I mean, the Date Format. You may have already known...
Polices Raided on Town!
There are N shops in a town named “The Worst-Model-Town”. The owner of the i’th shop is A[i]. One da...
Moderate 1/3/21
Subset Multiplication
In mathematics, especially in set theory, set A is a subset of set B, or equivalently B is a superse...
Tour in Grid
You have a grid with n rows and m columns. Cell at the i-th row and the j-th column is called Cell(i...
Victory Day
Today is 16th December, 2017. 46 years ago on this day we earned freedom. Every freedom comes up wit...
Moderate 200/223/447
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